MIT License

Copyright (c) 2024-2026 GambitCoach contributors

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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NOTE ON BUNDLED / DISTRIBUTED COMPONENTS

The MIT terms above apply to the **first-party application code** in this
repository (Python backend, JS frontend, CSS, HTML, hand-written documentation).

This repository also vendors or downloads at runtime several third-party
components that are governed by their own licenses, some of which are
copyleft. Most notably, the bundled `app/static/vendor/stockfish.js` engine is
licensed under the **GNU General Public License v3 (GPL-3.0)**. If you
redistribute the combined application (e.g. as a built artifact or a
container image), GPL-3.0 obligations attach to the combined work as a
whole.

See `THIRD_PARTY.md` for the full list of vendored components, their
upstream sources, and their licenses.

If you want to redistribute this project under permissive (MIT) terms only,
you must remove `app/static/vendor/stockfish.js` (and any other GPL
components) and arrange for Stockfish to be supplied separately by the end
user — the CLI workflow already supports a system-installed Stockfish on
`PATH`.